122605137240 has 64 divisors (see below), whose sum is σ = 387174124800. Its totient is φ = 30973928832.

The previous prime is 122605137191. The next prime is 122605137247. The reversal of 122605137240 is 42731506221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122605137247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26884812 + ... + 26889371.

It is an arithmetic number, because the mean of its divisors is an integer number (6049595700).

Almost surely, 2^122605137240 is an apocalyptic number.

122605137240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122605137240 is an abundant number, since it is smaller than the sum of its proper divisors (264568987560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122605137240 is a wasteful number, since it uses less digits than its factorization.

122605137240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53774216 (or 53774212 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The spelling of 122605137240 in words is "one hundred twenty-two billion, six hundred five million, one hundred thirty-seven thousand, two hundred forty".